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Titolo: Unified characteristics line theory of spacial axisymmetric plastic problem
Autore: Yu, MH; Li, JC; Zhang, YQ;
 Indirizzi:
 Xian Jiao Tong Univ, Sch Civil Engn & Mech, Xian 710049, Peoples R China Xian Jiao Tong Univ Xian Peoples R China 710049 710049, Peoples R China
 Titolo Testata:
 SCIENCE IN CHINA SERIES ETECHNOLOGICAL SCIENCES
fascicolo: 2,
volume: 44,
anno: 2001,
pagine: 207  215
 SICI:
 20950624(200104)44:2<207:UCLTOS>2.0.ZU;2G
 Fonte:
 ISI
 Lingua:
 ENG
 Keywords:
 plastic axisymmetric problem; unified strength theory; unified characteristics line field theory; Haarvon Karman condition;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Engineering, Computing & Technology
 Citazioni:
 30
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Yu, MH Xian Jiao Tong Univ, Sch Civil Engn & Mech, Xian 710049, Peoples R China Xian Jiao Tong Univ Xian Peoples R China 710049 , Peoples R China



 Citazione:
 M.H. Yu et al., "Unified characteristics line theory of spacial axisymmetric plastic problem", SCI CHINA E, 44(2), 2001, pp. 207215
Abstract
The unified strength theory proposed by Yu in 1991 is extended to spacial axisymmetric problem. A unified spacial axismymmetric characteristics line theory based on the unified strength theory is proposed. This theory takes account of different effects of intermediate principal stress on yielding or failure and the SD effect (tensilecompression strength difference) of materials. Various conventional axisymmetric characteristics line theories, whihc are based on the Haarvon Karman plastic condition, Szczepinski hypothesis, Tresca criterion, von Mises criterion and MohrCoulomb theory, are special cases of the new theory. Besides, a series of new spacial axisymmetric characteristics fields for different materials can be introduced. It forms a unified spacial axisymmetric characteristics theory. Two examples are calculated with the new theory, the results are compared with those obtainedby the finite element program UEPP and those based on the MohrCoulomb strength theory. It is shown that the new theory is reliable and feasible. Theeconomic benefit can be obtained from the engineering application of the new theory.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 08:27:53